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题库 / Prep2008E2-SC-197
Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.
a greater proportion than it was
a greater proportion than
a greater proportion than they have been
which is greater than was so
which is greater than it has been
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A：it doesn't stand for anything at all.
the only singular nouns that precede it are "spending" and "the presidential campaign of 1992". clearly, neither of these is an appropriate antecedent, so this choice is just wrong.
cant agree more
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